NGK 95875 Spark Plug

Laser Iridium Spark Plug for Mercedes-Benz

NGK 95875 is a Laser Iridium high ignitability spark plug built for select Mercedes-Benz applications that call for a specially indexed plug and a 0.028 in. gap. It is listed for a wide range of C-Class, E-Class, GLE, GLS, and AMG models, including Mercedes-Benz C43 AMG, E450, and GLC43 AMG applications.

Key Features

• Laser Iridium center electrode for stable ignition performance
• High ignitability ground electrode design for efficient combustion
• 0.028 in. pre-gap specification
• 12 mm thread diameter with 14 mm hex size
• Flat seat design with cup terminal
• Copper core construction in both center and ground electrodes
• Specially indexed fitment for listed Mercedes-Benz applications

Detailed Description

NGK 95875, also identified as SILZKFR8D7S, is an OE-style spark plug engineered around the requirements shown in the fitment data for Mercedes-Benz C300, E350, ML350, and related turbocharged and performance models. The plug uses an iridium center electrode, a square platinum ground electrode tip, and a standard single-ground configuration to support consistent spark delivery. The listed heat range, reach, and 0.028 in. gap match the application-specific requirements called out for these vehicles.

NGK’s Laser Iridium High Ignitability Spark Plug line focuses on precise ignition characteristics and OE-level specification control. This part cross-references Mercedes-Benz OE numbers A 004 159 72 03 and A 004 159 75 03 for the same application.

What It Helps Address

• Rough idle caused by worn or incorrect spark plugs
• Misfire conditions related to gap wear or electrode deterioration
• Hard starting from weakened ignition output
• Reduced throttle response from inconsistent spark delivery
• Service replacement needs on listed Mercedes-Benz ignition systems

Installation Notes and Tips

Verify the engine application against the fitment list before installation. Several listed Mercedes-Benz models require a specially indexed spark plug and note that alternatives should not be used. Confirm the 0.028 in. gap and the correct seat, reach, and thread specifications before fitting. Some applications in the fitment data also note a conventional 6-point hex.

Quality Assurance

NGK is a major OE spark plug supplier with long-standing North American coverage and manufacturing experience. The brand’s OE legacy and application-specific engineering support the specification accuracy expected for listed Mercedes-Benz applications.